<!DOCTYPE html>
<html lang="zh-CN">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <!-- 准备好一个"容器" -->
    <div id="test"></div>

    <!-- 引入react核心库 -->
    <script type="text/javascript" src="../js/react.development.js"></script>
    <!-- 引入react-dom,用于支持react操作DOM -->
    <script type="text/javascript" src="../js/react-dom.development.js"></script>
    <!-- 引入babel,用于将jsx转为js -->
    <script type="text/javascript" src="../js/babel.min.js"></script>

    <script type="text/babel">
        //1.创建组件
        class Demo extends React.Component {
            //展示左侧输入框的数据
            showData = () => {
                const { input1 } = this;
                alert(input1.value)
            }
            //展示右侧输入框的数据
            showData2 = () => {
                const { input2 } = this;
                alert(input2.value)
            }
            render() {
                return (
                    <div>
                        <input ref={c => this.input1 = c} haha={() => { console.log('#'); }} type="text" placeholder='点击按钮提示数据' />
                        <button onClick={this.showData}>点我提示左侧的数据</button>
                        <input ref={c => this.input2 = c} type="text" onBlur={this.showData2} placeholder='失去焦点提示数据' />
                    </div>
                )
            }
        }

        //2.渲染虚拟DOM到页面
        ReactDOM.render(<Demo a='1' b='2' />, document.getElementById('test'))

    </script>



</body>

</html>